Final answer:
An apple would be classified as an organ because it is made up of different tissues that work together to perform specific functions.
Step-by-step explanation:
An apple would be classified as an organ.
A cell is the basic unit of structure and function in living things. A tissue is a group of similar cells that work together to perform a specific function. An organ is a structure composed of multiple types of tissues that work together to perform a specific function.
In the case of an apple, it is made up of different tissues such as the skin, flesh, and core, which work together to carry out functions like protecting the fruit, providing structure, and containing seeds.